Q1 of 120 Page 95

+=2cosec θ

L.H.S:


Taking L.C.M of the denominators,









R.H.S


Hence proved.


More from this chapter

All 120 →
12

If the height of a tower and the distance of the point of observation from its foot, both are increased by 10%, then the angle of elevation of its top remains unchanged.

 1

+=2cosec θ

 2

= 2 cosec A

 2

= 2 cosec A